See also:

Changing the picture format
Select Source in the AUX menu and press the button on the remote control to confirm. Select Display Aux or Disk Drive Aux and press the button to confirm. Select Auto16:9 optimized, 4:3 o ...

Problems with the seat heating
The seat heating has switched off prematurely or cannot be switched on. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on. - Switch off ...

Vehicle data, GL 550
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...